Car construction



- July 1,1930. J. F. OQCOIIVNOR 9, 0

CAR CONSTRUCT ION Filed Dec. 26, 1929 Patented July 1, 1936 UNETEQSTATES@FFEQE JOHN F. OCONNOR, F CHICAGQ, ILLIHOIS, .ASSIGI'TOR TO W. H. MINER,INCL, 0F

. CHICAGO, ILLINOIS, A CORPORATTON OF DELA'WARE CAR CONSTRUCTIONApplication filed December 26, 1929. Serial No. 416,366.

This invention relates to improvements in car construction. One objectof the invention is to provide a combined locking and center pin meansfor connecting the body and truck bolsters of railway cars, which is ofrugged design having exceptional tensile strength and oliering maximumresistance against shearing action. A more specific object of theinvention is to provide a means of the character described in theprecedingparagraph ii'icluding a one piece, center pin member having amember at one end cooperating with a retaining shoulder adjacent the pinreceiving opening of one of the bolsters and having shoulderedengagement at the other end with a pair of locking blocks fixed to theother bolster, wherein the blocks are secured by holding means extendingthrough the same and the corresponding bolster and so arranged as to beunder multiple shear, thereby giving exceptional strength.

Gther objects of the invention will more clearly appear from thedescription and claims hereinafter following.

In the drawing, forming a part of this specification, Figure 1 is avertical, sectional view through the cooperating body and truck bolstersof a railway car showing my improve- 0 ments in connection therewith,thec'enter pin proper being shown in elevation. Figure is a horizontal,sectional View corresponding substantially to theline 22 of Figure 1.And Figure 3 is a detailed perspective view of a locking block memberemployed in connection with my improved center pin means.

In said drawings, 10 designates the body bolster and 11 the cooperatingtruck bolster of a railway car. The body bolster is pro- 0 vided withthe usual depending bearing projection 12 cooperating with hearing meansat the top of the't-ruclr bolster.

In carrying out nay-invention, I provide the body bolster with a centerpin receiving opening 13. and a pocket 14 above said opening.

As clearly shown in Figure 1, the pocket 1 1 is of greater diameter thanthe pin receiving opening 13, thereby providing an annular shoulder 15atthe bottom of said pocket.

The truck bolster is'provided with a substantially rectangular opening16 extending vertically therethrough and in alinement with the centerpin receiving opening 13 of the body bolster. The opening 16 is enlargedat the top of the t Lick bolster, as indicated at 17, thereby providinga horizontal ledge 18. The side walls of'the lower portion of theopening .16 are provided with spaced, op posed,'vert1cally arranged ribs19-19, as clearly shown in Figure 2. The ribs 19 are preferably two innumber, at each side of the opening '16 and are spaced from the outerwalls of the opening. The two ribs 19 are spaced apart a greaterdistance than the spacing between said ribs and the outer walls asclearly indicated in Figure 2. The ribs 19 terminate short of theupperend of the opening 16.

A bearing block 20 is supported on the truck bolster and cooperates withthe bearing projection 12 ofthe body bolster, the block and bearingprojection being provided with cooperating, substantially sphericalbearing surfaces. The bearing block 20 is seated within a pocket 21provided at the top of the truck bolster and has portion 22 of reducedsize disposed within the enlarged part 17 of the opening 16, saidreduced portion bearing on the ledge 18. The block 20 is also providedwith a depending projection 23 which fits within the upper end portionof the opening 16 above the ribs 19. The bearing block is provided witha center pin receiving opening 24 which isin vertical 5 alinement withthe opening 13 of the bolster 10 and corresponds in diameter thereto. Anannular rib or flange 25 of usual form is provided on the bearing blockand surrounds th i receiving opening thereof and is 90 seated within apocket 26 of the bearing projection 12 of the body bolster.

My improved combined locking and center pin means comprises broadly acenter pin member A and a pair of locking blocks B-B. The center pinmember A is preferably of one piece, solid construction, having a shankportion extending through the center pin receiving o enings of thebolster 10 and the bearin b ock and projecting downwardly beyon thebearing block into the pocket provided therebelow by the recess oropening 16. At the upper end, the pin A is provided with a head member27 cooperating with the annular shoulder 15, the head being accommodatedwithin the pocket 14. Immediately adjacent the head, the shank of themember A is of substantially such a size as to closely fit the pinreceiving opening 13. Below this gortion of the shank, the shank isreduced in iametar as indicated at 28 so as to provide slight clearancebetween the same and the bottom end portion of the pin receiving opening13 0f the body bolster. Adjacent the bottom end, the shank of the pin iscut away as indicated at 29, thereby providing an an nular groove belowthe bearing block 20 and a head 30 at the bottom end of the pin of thesame diameter as the shank portion 28 and of smaller diameter than thehead 27.

The blocks 13-13 are of similar design, and are arranged side by side inthe opening 16 of the truck bolster below the bearing block 20. Theblocks B-B embrace the lower end of the pin A and each block is recessedon the inner side, as indicated at 31, to accommodate the bottom endportion of the pin. As most clearl shown in Figures 2 and the recesses31 o the two blocks together define a substantially cylindrical o ening,the lower end portion of which is en arged, as indicated at 32, toaccommodate the head 30 at the bottom end of the pin, the upper end ofsaid opening being of such a size as to smlfiy fit the groove portion 29of the shank of t e member A. As will be clear, the enlarged portions ofthe recess 31 of the blocks B provide retaining shoulders 33-33, which000 erate with the head 30.

ach block B is vertically grooved at oppoeite ends, as indicated at34-34, thereby providing a pair of spaced tongues 35-35 at each end tereof, which embrace the corlfiponding ribs or tongues 19 of the pocketor opening 16 the tongues 19 bein acconrmodated within the grooves 34 ansnugly fitting the same. The two blocks are secured tathe truck bolsterby a pair of transversely disposed retaining pins 36-36 which extendthrough alined openings in the cooperating 19 and 35 of the truckbolster and locks B-B. As will be evident, by providing theinter-engaging tongue and grooved formation on the retaining blocks andthe truck bolster comprising a plurality of tongues through which theretaining pins extend, an exceptionally efiicient holding means isprovided in that the retaining pins are subject to multiple shear, inthis particular case sextuple shear.

In assembling my improved combined locking and center pin means with thebody and truck bolsters of a railway car, the pin member A is firstapplied to the body bolster by inserting the same downwardly through theopening of the same. The bearin block 20 is then placed in position onthe ottom end of the pin A and the two locking blocks B-B engaged overthe head 30 in embracing relation with the grooved portion of the shankand with the head of the pin. The pin with the blocks B-B mountedthereon, together with the bearing block 20 are then passed into theopening of the truck bolster, the blocks being entered into the pocket16 so that the tongues 35-35 thereof engage between the tongues 19 onthe interior of the ocket of the truck bolster, the bearing blocii beingseated in the pocket 21 and the extension 23 thereof being seated in theupper end of the opening 16 of the bolster above the ribs or tongues 19.The securing pins 36 are then inserted through the alined openings ofthe tongues 35-35 and 19-19 and secured by cotter pins 37-37.

When it is desired to separate the body and truck bolsters, it is merelynecessary to remove the two pins 36-36, whereupon the body bolster maybe lifted with respect to the truck bolster, the in A, hearing block 20and retaining blocks -B being lifted therewith clear of the truckbolster.

I have herein shown and described what I now consider the preferredmanner of carrying out my invention, but the same is merely illustrativeand I contemplate all changes and modifications that come within thescope of the claims appended hereto.

I clalm:

1. In car construction, the combination with body and truck bolsters; ofa center pin extending through said bolsters, said pin having shoulderedengagement with one of the bolsters to prevent removal of the pin in onedirection; and means connecting the pin to the other bolster, preventingremoval in an opposite direction, said means including a pair of blocksembracing the pin and havin shouldered engagement with the coirespon ingend of the same; and means extending transversely through the blocks andthe corresponding bolster for securing the blocks thereto.

2. In car construction, the combination with body and truck bolsters,one of said bolsters having a pin receiving opening and a shoulderadjacent the outer end of said opening, and the other bolster having apocket in alinement with the pin receiving opening; of a bearing blockmounted on said last named bolster and cooperating with bearing means onthe other bolster, said hearing block having a pin receiving opening; apin extending through the openings of said bolster and bearing block andinto said pocket, said pin having a head cooperating with said shoulder;a pair of retaining blocks within said pocket embracing thecorresponding portion of the pin and having shouldered engagementtherewith; and means extending through the bearing blocks andcorresponding bolster for securing the bearing blocks thereto.

3. In car construction, the combination with body and truck bolsters,one of said bolsters having a center pin receiving opening and ashoulder adjacent the outer end of its opening, and the other bolsterhaving a pocket in alinement with said opening; of a bearing blockmounted on said last named bolster and having a projecting portionextending into said pocket and partly occupying the same, said blockhaving a center pin opening in alinement with the first named opening; acenter pin extending through said opening of said bolster and theopening of the bearing block and into the pocket beyond said block, saidpin having a head member engaging said shoulder of said bolster; a pairof locking blocks embracing the end of the pin disposed within saidpocket and having shouldered engagement therewith; and means extendingtransversely through said bearing blocks and the corresponding bolsterfor securing the same together.

4. In car construction, the combination with body and truck bolsters,one of said bolsters having a center pin receiving opening and aretaining shoulder adjacent the outer end of its opening, the otherbolster having a pocket in alinement with said opening; of a center pinfor connecting said bol sters, said pin having a head at one end c0-operating with vsaid retaining shoulder and having the other endprojecting into said pocket; a pair of locking blocks within the pocketembracing the corresponding end of the pin and having shoulderedengagement therewith, said blocks having tongue and groove connectionwith the corresponding bolster; and securing means extendingtransversely through said tongue and groove connection.

